This sounds very interesting...will it potentially work with the existing hardware in the car (ie. display accessible through iDrive?). That would be fantastic.

sorry i'm gonna go off-topic for a minute: good to see a French guy on an english forum!!!
i'm French too, live in Canada now, and not many people out there have a decent level of English... unless you're a US guy who immigrated to France?

OK that's it, sorry guys...
and yes TPMS is great, it can also tell you that even though you just paid $ 60 for a shop to switch your winters to summer rims+tires, they never checked the tire pressure after installing the news wheels...